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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: SchemaModel.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.schema;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.google.common.base.Function;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.google.common.base.Predicate;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import com.google.common.collect.Maps;<a name="line.12"></a>
<span class="sourceLineNo">013</span><a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.io.ByteArrayOutputStream;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.io.IOException;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.io.InputStream;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import java.io.OutputStream;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import java.io.PrintStream;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import java.nio.charset.Charset;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.util.ArrayList;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.Collections;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.HashMap;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.NavigableSet;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.util.SortedMap;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.util.TreeMap;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>import javax.xml.namespace.QName;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import javax.xml.stream.XMLInputFactory;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import javax.xml.stream.XMLOutputFactory;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import javax.xml.stream.XMLStreamException;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import javax.xml.stream.XMLStreamReader;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import javax.xml.stream.XMLStreamWriter;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.dellroad.stuff.xml.IndentXMLStreamWriter;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.jsimpledb.core.InvalidSchemaException;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.jsimpledb.util.AbstractXMLStreaming;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.jsimpledb.util.DiffGenerating;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.jsimpledb.util.Diffs;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.jsimpledb.util.NavigableSets;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>/**<a name="line.42"></a>
<span class="sourceLineNo">043</span> * Models one JSimpleDB {@link org.jsimpledb.core.Database} schema version.<a name="line.43"></a>
<span class="sourceLineNo">044</span> */<a name="line.44"></a>
<span class="sourceLineNo">045</span>public class SchemaModel extends AbstractXMLStreaming implements XMLConstants, Cloneable, DiffGenerating&lt;SchemaModel&gt; {<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span>    static final Map&lt;QName, Class&lt;? extends SchemaField&gt;&gt; FIELD_TAG_MAP = new HashMap&lt;&gt;();<a name="line.47"></a>
<span class="sourceLineNo">048</span>    static {<a name="line.48"></a>
<span class="sourceLineNo">049</span>        FIELD_TAG_MAP.put(COUNTER_FIELD_TAG, CounterSchemaField.class);<a name="line.49"></a>
<span class="sourceLineNo">050</span>        FIELD_TAG_MAP.put(ENUM_FIELD_TAG, EnumSchemaField.class);<a name="line.50"></a>
<span class="sourceLineNo">051</span>        FIELD_TAG_MAP.put(LIST_FIELD_TAG, ListSchemaField.class);<a name="line.51"></a>
<span class="sourceLineNo">052</span>        FIELD_TAG_MAP.put(MAP_FIELD_TAG, MapSchemaField.class);<a name="line.52"></a>
<span class="sourceLineNo">053</span>        FIELD_TAG_MAP.put(REFERENCE_FIELD_TAG, ReferenceSchemaField.class);<a name="line.53"></a>
<span class="sourceLineNo">054</span>        FIELD_TAG_MAP.put(SET_FIELD_TAG, SetSchemaField.class);<a name="line.54"></a>
<span class="sourceLineNo">055</span>        FIELD_TAG_MAP.put(SIMPLE_FIELD_TAG, SimpleSchemaField.class);<a name="line.55"></a>
<span class="sourceLineNo">056</span>    }<a name="line.56"></a>
<span class="sourceLineNo">057</span>    static final Map&lt;QName, Class&lt;? extends SimpleSchemaField&gt;&gt; SIMPLE_FIELD_TAG_MAP = Maps.transformValues(<a name="line.57"></a>
<span class="sourceLineNo">058</span>      Maps.filterValues(SchemaModel.FIELD_TAG_MAP,<a name="line.58"></a>
<span class="sourceLineNo">059</span>      new Predicate&lt;Class&lt;? extends SchemaField&gt;&gt;() {<a name="line.59"></a>
<span class="sourceLineNo">060</span>        @Override<a name="line.60"></a>
<span class="sourceLineNo">061</span>        public boolean apply(Class&lt;? extends SchemaField&gt; type) {<a name="line.61"></a>
<span class="sourceLineNo">062</span>            return SimpleSchemaField.class.isAssignableFrom(type);<a name="line.62"></a>
<span class="sourceLineNo">063</span>        }<a name="line.63"></a>
<span class="sourceLineNo">064</span>      }), new Function&lt;Class&lt;? extends SchemaField&gt;, Class&lt;? extends SimpleSchemaField&gt;&gt;() {<a name="line.64"></a>
<span class="sourceLineNo">065</span>        @Override<a name="line.65"></a>
<span class="sourceLineNo">066</span>        public Class&lt;? extends SimpleSchemaField&gt; apply(Class&lt;? extends SchemaField&gt; type) {<a name="line.66"></a>
<span class="sourceLineNo">067</span>            return type.asSubclass(SimpleSchemaField.class);<a name="line.67"></a>
<span class="sourceLineNo">068</span>        }<a name="line.68"></a>
<span class="sourceLineNo">069</span>      });<a name="line.69"></a>
<span class="sourceLineNo">070</span>    static final Map&lt;QName, Class&lt;? extends AbstractSchemaItem&gt;&gt; FIELD_OR_COMPOSITE_INDEX_TAG_MAP = new HashMap&lt;&gt;();<a name="line.70"></a>
<span class="sourceLineNo">071</span>    static {<a name="line.71"></a>
<span class="sourceLineNo">072</span>        FIELD_OR_COMPOSITE_INDEX_TAG_MAP.putAll(FIELD_TAG_MAP);<a name="line.72"></a>
<span class="sourceLineNo">073</span>        FIELD_OR_COMPOSITE_INDEX_TAG_MAP.put(COMPOSITE_INDEX_TAG, SchemaCompositeIndex.class);<a name="line.73"></a>
<span class="sourceLineNo">074</span>    }<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>    private static final int CURRENT_FORMAT_VERSION = 2;<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span>    private /*final*/ TreeMap&lt;Integer, SchemaObjectType&gt; schemaObjectTypes = new TreeMap&lt;&gt;();<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>    public SortedMap&lt;Integer, SchemaObjectType&gt; getSchemaObjectTypes() {<a name="line.80"></a>
<span class="sourceLineNo">081</span>        return this.schemaObjectTypes;<a name="line.81"></a>
<span class="sourceLineNo">082</span>    }<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span>    /**<a name="line.84"></a>
<span class="sourceLineNo">085</span>     * Serialize an instance to the given XML output.<a name="line.85"></a>
<span class="sourceLineNo">086</span>     *<a name="line.86"></a>
<span class="sourceLineNo">087</span>     * &lt;p&gt;<a name="line.87"></a>
<span class="sourceLineNo">088</span>     * The {@code output} is not closed by this method.<a name="line.88"></a>
<span class="sourceLineNo">089</span>     * &lt;/p&gt;<a name="line.89"></a>
<span class="sourceLineNo">090</span>     *<a name="line.90"></a>
<span class="sourceLineNo">091</span>     * @param output XML output<a name="line.91"></a>
<span class="sourceLineNo">092</span>     * @param indent true to pretty print the XML<a name="line.92"></a>
<span class="sourceLineNo">093</span>     * @throws IOException if an I/O error occurs<a name="line.93"></a>
<span class="sourceLineNo">094</span>     */<a name="line.94"></a>
<span class="sourceLineNo">095</span>    public void toXML(OutputStream output, boolean indent) throws IOException {<a name="line.95"></a>
<span class="sourceLineNo">096</span>        try {<a name="line.96"></a>
<span class="sourceLineNo">097</span>            XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(output, "UTF-8");<a name="line.97"></a>
<span class="sourceLineNo">098</span>            if (indent)<a name="line.98"></a>
<span class="sourceLineNo">099</span>                writer = new IndentXMLStreamWriter(writer);<a name="line.99"></a>
<span class="sourceLineNo">100</span>            writer.writeStartDocument("UTF-8", "1.0");<a name="line.100"></a>
<span class="sourceLineNo">101</span>            this.writeXML(writer);<a name="line.101"></a>
<span class="sourceLineNo">102</span>            writer.writeEndDocument();<a name="line.102"></a>
<span class="sourceLineNo">103</span>            writer.flush();<a name="line.103"></a>
<span class="sourceLineNo">104</span>        } catch (XMLStreamException e) {<a name="line.104"></a>
<span class="sourceLineNo">105</span>            if (e.getCause() instanceof IOException)<a name="line.105"></a>
<span class="sourceLineNo">106</span>                throw (IOException)e.getCause();<a name="line.106"></a>
<span class="sourceLineNo">107</span>            throw new RuntimeException("internal error", e);<a name="line.107"></a>
<span class="sourceLineNo">108</span>        }<a name="line.108"></a>
<span class="sourceLineNo">109</span>        new PrintStream(output, true).println();<a name="line.109"></a>
<span class="sourceLineNo">110</span>        output.flush();<a name="line.110"></a>
<span class="sourceLineNo">111</span>    }<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>    /**<a name="line.113"></a>
<span class="sourceLineNo">114</span>     * Deserialize an instance from the given XML input and validate it.<a name="line.114"></a>
<span class="sourceLineNo">115</span>     *<a name="line.115"></a>
<span class="sourceLineNo">116</span>     * @param input XML input<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * @return deserialized schema model<a name="line.117"></a>
<span class="sourceLineNo">118</span>     * @throws IOException if an I/O error occurs<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * @throws InvalidSchemaException if the XML input or decoded {@link SchemaModel} is invalid<a name="line.119"></a>
<span class="sourceLineNo">120</span>     */<a name="line.120"></a>
<span class="sourceLineNo">121</span>    public static SchemaModel fromXML(InputStream input) throws IOException {<a name="line.121"></a>
<span class="sourceLineNo">122</span>        final SchemaModel schemaModel = new SchemaModel();<a name="line.122"></a>
<span class="sourceLineNo">123</span>        try {<a name="line.123"></a>
<span class="sourceLineNo">124</span>            final XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(input);<a name="line.124"></a>
<span class="sourceLineNo">125</span>            schemaModel.readXML(reader);<a name="line.125"></a>
<span class="sourceLineNo">126</span>        } catch (XMLStreamException e) {<a name="line.126"></a>
<span class="sourceLineNo">127</span>            throw new InvalidSchemaException("error parsing schema model XML", e);<a name="line.127"></a>
<span class="sourceLineNo">128</span>        }<a name="line.128"></a>
<span class="sourceLineNo">129</span>        schemaModel.validate();<a name="line.129"></a>
<span class="sourceLineNo">130</span>        return schemaModel;<a name="line.130"></a>
<span class="sourceLineNo">131</span>    }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>    /**<a name="line.133"></a>
<span class="sourceLineNo">134</span>     * Validate this instance.<a name="line.134"></a>
<span class="sourceLineNo">135</span>     *<a name="line.135"></a>
<span class="sourceLineNo">136</span>     * &lt;p&gt;<a name="line.136"></a>
<span class="sourceLineNo">137</span>     * This performs some basic structural validation. Full validation is not possible without a<a name="line.137"></a>
<span class="sourceLineNo">138</span>     * {@link org.jsimpledb.core.Database} instance (for example, we don't know whether or not a custom<a name="line.138"></a>
<span class="sourceLineNo">139</span>     * {@link SimpleSchemaField} type name is registered with the associated {@link org.jsimpledb.core.FieldTypeRegistry}).<a name="line.139"></a>
<span class="sourceLineNo">140</span>     * &lt;/p&gt;<a name="line.140"></a>
<span class="sourceLineNo">141</span>     *<a name="line.141"></a>
<span class="sourceLineNo">142</span>     * @throws InvalidSchemaException if this instance is detected to be invalid<a name="line.142"></a>
<span class="sourceLineNo">143</span>     */<a name="line.143"></a>
<span class="sourceLineNo">144</span>    public void validate() {<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span>        // Validate object types and verify object type names are unique<a name="line.146"></a>
<span class="sourceLineNo">147</span>        final TreeMap&lt;String, SchemaObjectType&gt; schemaObjectTypesByName = new TreeMap&lt;&gt;();<a name="line.147"></a>
<span class="sourceLineNo">148</span>        for (SchemaObjectType schemaObjectType : this.schemaObjectTypes.values()) {<a name="line.148"></a>
<span class="sourceLineNo">149</span>            schemaObjectType.validate();<a name="line.149"></a>
<span class="sourceLineNo">150</span>            final String schemaObjectTypeName = schemaObjectType.getName();<a name="line.150"></a>
<span class="sourceLineNo">151</span>            final SchemaObjectType otherSchemaObjectType = schemaObjectTypesByName.put(schemaObjectTypeName, schemaObjectType);<a name="line.151"></a>
<span class="sourceLineNo">152</span>            if (otherSchemaObjectType != null)<a name="line.152"></a>
<span class="sourceLineNo">153</span>                throw new InvalidSchemaException("duplicate object name `" + schemaObjectTypeName + "'");<a name="line.153"></a>
<span class="sourceLineNo">154</span>        }<a name="line.154"></a>
<span class="sourceLineNo">155</span><a name="line.155"></a>
<span class="sourceLineNo">156</span>        // Collect all field storage ID's<a name="line.156"></a>
<span class="sourceLineNo">157</span>        final TreeMap&lt;Integer, AbstractSchemaItem&gt; globalItemsByStorageId = new TreeMap&lt;&gt;();<a name="line.157"></a>
<span class="sourceLineNo">158</span>        for (SchemaObjectType schemaObjectType : this.schemaObjectTypes.values()) {<a name="line.158"></a>
<span class="sourceLineNo">159</span>            for (SchemaField field : schemaObjectType.getSchemaFields().values()) {<a name="line.159"></a>
<span class="sourceLineNo">160</span>                globalItemsByStorageId.put(field.getStorageId(), field);<a name="line.160"></a>
<span class="sourceLineNo">161</span>                if (field instanceof ComplexSchemaField) {<a name="line.161"></a>
<span class="sourceLineNo">162</span>                    final ComplexSchemaField complexField = (ComplexSchemaField)field;<a name="line.162"></a>
<span class="sourceLineNo">163</span>                    for (SimpleSchemaField subField : complexField.getSubFields().values())<a name="line.163"></a>
<span class="sourceLineNo">164</span>                        globalItemsByStorageId.put(subField.getStorageId(), subField);<a name="line.164"></a>
<span class="sourceLineNo">165</span>                }<a name="line.165"></a>
<span class="sourceLineNo">166</span>            }<a name="line.166"></a>
<span class="sourceLineNo">167</span>        }<a name="line.167"></a>
<span class="sourceLineNo">168</span><a name="line.168"></a>
<span class="sourceLineNo">169</span>        // Verify object type, field, and index storage ID's are non-overlapping<a name="line.169"></a>
<span class="sourceLineNo">170</span>        for (SchemaObjectType schemaObjectType : this.schemaObjectTypes.values()) {<a name="line.170"></a>
<span class="sourceLineNo">171</span>            SchemaModel.verifyUniqueStorageId(globalItemsByStorageId, schemaObjectType);<a name="line.171"></a>
<span class="sourceLineNo">172</span>            for (SchemaCompositeIndex index : schemaObjectType.getSchemaCompositeIndexes().values())<a name="line.172"></a>
<span class="sourceLineNo">173</span>                SchemaModel.verifyUniqueStorageId(globalItemsByStorageId, index);<a name="line.173"></a>
<span class="sourceLineNo">174</span>        }<a name="line.174"></a>
<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
<span class="sourceLineNo">176</span><a name="line.176"></a>
<span class="sourceLineNo">177</span>    static &lt;T extends AbstractSchemaItem&gt; void verifyUniqueStorageId(TreeMap&lt;Integer, T&gt; itemsByStorageId, T item) {<a name="line.177"></a>
<span class="sourceLineNo">178</span>        final int storageId = item.getStorageId();<a name="line.178"></a>
<span class="sourceLineNo">179</span>        final T previous = itemsByStorageId.get(storageId);<a name="line.179"></a>
<span class="sourceLineNo">180</span>        if (previous != null &amp;&amp; !previous.equals(item)) {<a name="line.180"></a>
<span class="sourceLineNo">181</span>            throw new InvalidSchemaException("incompatible duplicate use of storage ID "<a name="line.181"></a>
<span class="sourceLineNo">182</span>              + storageId + " by both " + previous + " and " + item);<a name="line.182"></a>
<span class="sourceLineNo">183</span>        }<a name="line.183"></a>
<span class="sourceLineNo">184</span>        itemsByStorageId.put(storageId, item);<a name="line.184"></a>
<span class="sourceLineNo">185</span>    }<a name="line.185"></a>
<span class="sourceLineNo">186</span><a name="line.186"></a>
<span class="sourceLineNo">187</span>    /**<a name="line.187"></a>
<span class="sourceLineNo">188</span>     * Determine whether this schema is compatible with the given schema for use with the core API.<a name="line.188"></a>
<span class="sourceLineNo">189</span>     * Two instances are compatible if they are identical in all respects except for object and field names<a name="line.189"></a>
<span class="sourceLineNo">190</span>     * (to also include object and field names in the comparison, use {@link #equals equals()}).<a name="line.190"></a>
<span class="sourceLineNo">191</span>     * The core API uses storage IDs, not names, to identify objects and fields.<a name="line.191"></a>
<span class="sourceLineNo">192</span>     *<a name="line.192"></a>
<span class="sourceLineNo">193</span>     * @param that other schema<a name="line.193"></a>
<span class="sourceLineNo">194</span>     * @return true if this and {@code that} are compatible<a name="line.194"></a>
<span class="sourceLineNo">195</span>     * @throws IllegalArgumentException if {@code that} is null<a name="line.195"></a>
<span class="sourceLineNo">196</span>     */<a name="line.196"></a>
<span class="sourceLineNo">197</span>    public boolean isCompatibleWith(SchemaModel that) {<a name="line.197"></a>
<span class="sourceLineNo">198</span>        if (that == null)<a name="line.198"></a>
<span class="sourceLineNo">199</span>            throw new IllegalArgumentException("null that");<a name="line.199"></a>
<span class="sourceLineNo">200</span>        if (!this.schemaObjectTypes.keySet().equals(that.schemaObjectTypes.keySet()))<a name="line.200"></a>
<span class="sourceLineNo">201</span>            return false;<a name="line.201"></a>
<span class="sourceLineNo">202</span>        for (int storageId : this.schemaObjectTypes.keySet()) {<a name="line.202"></a>
<span class="sourceLineNo">203</span>            final SchemaObjectType thisSchemaObjectType = this.schemaObjectTypes.get(storageId);<a name="line.203"></a>
<span class="sourceLineNo">204</span>            final SchemaObjectType thatSchemaObjectType = that.schemaObjectTypes.get(storageId);<a name="line.204"></a>
<span class="sourceLineNo">205</span>            if (!thisSchemaObjectType.isCompatibleWith(thatSchemaObjectType))<a name="line.205"></a>
<span class="sourceLineNo">206</span>                return false;<a name="line.206"></a>
<span class="sourceLineNo">207</span>        }<a name="line.207"></a>
<span class="sourceLineNo">208</span>        return true;<a name="line.208"></a>
<span class="sourceLineNo">209</span>    }<a name="line.209"></a>
<span class="sourceLineNo">210</span><a name="line.210"></a>
<span class="sourceLineNo">211</span>// DiffGenerating<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span>    @Override<a name="line.213"></a>
<span class="sourceLineNo">214</span>    public Diffs differencesFrom(SchemaModel that) {<a name="line.214"></a>
<span class="sourceLineNo">215</span>        if (that == null)<a name="line.215"></a>
<span class="sourceLineNo">216</span>            throw new IllegalArgumentException("null that");<a name="line.216"></a>
<span class="sourceLineNo">217</span>        final Diffs diffs = new Diffs();<a name="line.217"></a>
<span class="sourceLineNo">218</span>        final NavigableSet&lt;Integer&gt; allObjectTypeIds = NavigableSets.union(<a name="line.218"></a>
<span class="sourceLineNo">219</span>          this.schemaObjectTypes.navigableKeySet(), that.schemaObjectTypes.navigableKeySet());<a name="line.219"></a>
<span class="sourceLineNo">220</span>        for (int storageId : allObjectTypeIds) {<a name="line.220"></a>
<span class="sourceLineNo">221</span>            final SchemaObjectType thisObjectType = this.schemaObjectTypes.get(storageId);<a name="line.221"></a>
<span class="sourceLineNo">222</span>            final SchemaObjectType thatObjectType = that.schemaObjectTypes.get(storageId);<a name="line.222"></a>
<span class="sourceLineNo">223</span>            if (thisObjectType == null)<a name="line.223"></a>
<span class="sourceLineNo">224</span>                diffs.add("removed " + thatObjectType);<a name="line.224"></a>
<span class="sourceLineNo">225</span>            else if (thatObjectType == null)<a name="line.225"></a>
<span class="sourceLineNo">226</span>                diffs.add("added " + thisObjectType);<a name="line.226"></a>
<span class="sourceLineNo">227</span>            else {<a name="line.227"></a>
<span class="sourceLineNo">228</span>                final Diffs objectTypeDiffs = thisObjectType.differencesFrom(thatObjectType);<a name="line.228"></a>
<span class="sourceLineNo">229</span>                if (!objectTypeDiffs.isEmpty())<a name="line.229"></a>
<span class="sourceLineNo">230</span>                    diffs.add("changed " + thatObjectType, objectTypeDiffs);<a name="line.230"></a>
<span class="sourceLineNo">231</span>            }<a name="line.231"></a>
<span class="sourceLineNo">232</span>        }<a name="line.232"></a>
<span class="sourceLineNo">233</span>        return diffs;<a name="line.233"></a>
<span class="sourceLineNo">234</span>    }<a name="line.234"></a>
<span class="sourceLineNo">235</span><a name="line.235"></a>
<span class="sourceLineNo">236</span>// XML Reading<a name="line.236"></a>
<span class="sourceLineNo">237</span><a name="line.237"></a>
<span class="sourceLineNo">238</span>    void readXML(XMLStreamReader reader) throws XMLStreamException {<a name="line.238"></a>
<span class="sourceLineNo">239</span>        this.schemaObjectTypes.clear();<a name="line.239"></a>
<span class="sourceLineNo">240</span><a name="line.240"></a>
<span class="sourceLineNo">241</span>        // Read opening tag<a name="line.241"></a>
<span class="sourceLineNo">242</span>        this.expect(reader, false, SCHEMA_MODEL_TAG);<a name="line.242"></a>
<span class="sourceLineNo">243</span><a name="line.243"></a>
<span class="sourceLineNo">244</span>        // Get and verify format version<a name="line.244"></a>
<span class="sourceLineNo">245</span>        final Integer formatAttr = this.getIntAttr(reader, FORMAT_VERSION_ATTRIBUTE, false);<a name="line.245"></a>
<span class="sourceLineNo">246</span>        final int formatVersion = formatAttr != null ? formatAttr : 0;<a name="line.246"></a>
<span class="sourceLineNo">247</span>        final QName objectTypeTag;<a name="line.247"></a>
<span class="sourceLineNo">248</span>        switch (formatVersion) {<a name="line.248"></a>
<span class="sourceLineNo">249</span>        case 0:<a name="line.249"></a>
<span class="sourceLineNo">250</span>            objectTypeTag = new QName("Object");<a name="line.250"></a>
<span class="sourceLineNo">251</span>            break;<a name="line.251"></a>
<span class="sourceLineNo">252</span>        case 1:                                             // changed &lt;Object&gt; to &lt;ObjectType&gt;<a name="line.252"></a>
<span class="sourceLineNo">253</span>        case 2:                                             // added &lt;CompositeIndex&gt;<a name="line.253"></a>
<span class="sourceLineNo">254</span>            objectTypeTag = OBJECT_TYPE_TAG;<a name="line.254"></a>
<span class="sourceLineNo">255</span>            break;<a name="line.255"></a>
<span class="sourceLineNo">256</span>        default:<a name="line.256"></a>
<span class="sourceLineNo">257</span>            throw new XMLStreamException("unrecognized schema format version " + formatAttr, reader.getLocation());<a name="line.257"></a>
<span class="sourceLineNo">258</span>        }<a name="line.258"></a>
<span class="sourceLineNo">259</span><a name="line.259"></a>
<span class="sourceLineNo">260</span>        // Read object type tags<a name="line.260"></a>
<span class="sourceLineNo">261</span>        while (this.expect(reader, true, objectTypeTag)) {<a name="line.261"></a>
<span class="sourceLineNo">262</span>            final SchemaObjectType schemaObjectType = new SchemaObjectType();<a name="line.262"></a>
<span class="sourceLineNo">263</span>            schemaObjectType.readXML(reader, formatVersion);<a name="line.263"></a>
<span class="sourceLineNo">264</span>            final int storageId = schemaObjectType.getStorageId();<a name="line.264"></a>
<span class="sourceLineNo">265</span>            final SchemaObjectType previous = this.schemaObjectTypes.put(storageId, schemaObjectType);<a name="line.265"></a>
<span class="sourceLineNo">266</span>            if (previous != null) {<a name="line.266"></a>
<span class="sourceLineNo">267</span>                throw new XMLStreamException("duplicate use of storage ID " + storageId<a name="line.267"></a>
<span class="sourceLineNo">268</span>                  + " for both " + previous + " and " + schemaObjectType, reader.getLocation());<a name="line.268"></a>
<span class="sourceLineNo">269</span>            }<a name="line.269"></a>
<span class="sourceLineNo">270</span>        }<a name="line.270"></a>
<span class="sourceLineNo">271</span>    }<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
<span class="sourceLineNo">273</span>// XML Writing<a name="line.273"></a>
<span class="sourceLineNo">274</span><a name="line.274"></a>
<span class="sourceLineNo">275</span>    void writeXML(XMLStreamWriter writer) throws XMLStreamException {<a name="line.275"></a>
<span class="sourceLineNo">276</span>        writer.setDefaultNamespace(SCHEMA_MODEL_TAG.getNamespaceURI());<a name="line.276"></a>
<span class="sourceLineNo">277</span>        writer.writeStartElement(SCHEMA_MODEL_TAG.getNamespaceURI(), SCHEMA_MODEL_TAG.getLocalPart());<a name="line.277"></a>
<span class="sourceLineNo">278</span>        writer.writeAttribute(FORMAT_VERSION_ATTRIBUTE.getNamespaceURI(),<a name="line.278"></a>
<span class="sourceLineNo">279</span>          FORMAT_VERSION_ATTRIBUTE.getLocalPart(), "" + CURRENT_FORMAT_VERSION);<a name="line.279"></a>
<span class="sourceLineNo">280</span>        final ArrayList&lt;SchemaObjectType&gt; typeList = new ArrayList&lt;&gt;(this.schemaObjectTypes.values());<a name="line.280"></a>
<span class="sourceLineNo">281</span>        Collections.sort(typeList, new AbstractSchemaItem.NameComparator());<a name="line.281"></a>
<span class="sourceLineNo">282</span>        for (SchemaObjectType schemaObjectType : typeList)<a name="line.282"></a>
<span class="sourceLineNo">283</span>            schemaObjectType.writeXML(writer);<a name="line.283"></a>
<span class="sourceLineNo">284</span>        writer.writeEndElement();<a name="line.284"></a>
<span class="sourceLineNo">285</span>    }<a name="line.285"></a>
<span class="sourceLineNo">286</span><a name="line.286"></a>
<span class="sourceLineNo">287</span>// Object<a name="line.287"></a>
<span class="sourceLineNo">288</span><a name="line.288"></a>
<span class="sourceLineNo">289</span>    @Override<a name="line.289"></a>
<span class="sourceLineNo">290</span>    public String toString() {<a name="line.290"></a>
<span class="sourceLineNo">291</span>        final ByteArrayOutputStream buf = new ByteArrayOutputStream();<a name="line.291"></a>
<span class="sourceLineNo">292</span>        try {<a name="line.292"></a>
<span class="sourceLineNo">293</span>            this.toXML(buf, true);<a name="line.293"></a>
<span class="sourceLineNo">294</span>        } catch (IOException e) {<a name="line.294"></a>
<span class="sourceLineNo">295</span>            throw new RuntimeException(e);<a name="line.295"></a>
<span class="sourceLineNo">296</span>        }<a name="line.296"></a>
<span class="sourceLineNo">297</span>        return new String(buf.toByteArray(), Charset.forName("UTF-8"))<a name="line.297"></a>
<span class="sourceLineNo">298</span>          .replaceAll("(?s)&lt;\\?xml version=\"1\\.0\" encoding=\"UTF-8\"\\?&gt;\n", "").trim();<a name="line.298"></a>
<span class="sourceLineNo">299</span>    }<a name="line.299"></a>
<span class="sourceLineNo">300</span><a name="line.300"></a>
<span class="sourceLineNo">301</span>    @Override<a name="line.301"></a>
<span class="sourceLineNo">302</span>    public boolean equals(Object obj) {<a name="line.302"></a>
<span class="sourceLineNo">303</span>        if (obj == this)<a name="line.303"></a>
<span class="sourceLineNo">304</span>            return true;<a name="line.304"></a>
<span class="sourceLineNo">305</span>        if (obj == null || obj.getClass() != this.getClass())<a name="line.305"></a>
<span class="sourceLineNo">306</span>            return false;<a name="line.306"></a>
<span class="sourceLineNo">307</span>        final SchemaModel that = (SchemaModel)obj;<a name="line.307"></a>
<span class="sourceLineNo">308</span>        return this.schemaObjectTypes.equals(that.schemaObjectTypes);<a name="line.308"></a>
<span class="sourceLineNo">309</span>    }<a name="line.309"></a>
<span class="sourceLineNo">310</span><a name="line.310"></a>
<span class="sourceLineNo">311</span>    @Override<a name="line.311"></a>
<span class="sourceLineNo">312</span>    public int hashCode() {<a name="line.312"></a>
<span class="sourceLineNo">313</span>        return this.schemaObjectTypes.hashCode();<a name="line.313"></a>
<span class="sourceLineNo">314</span>    }<a name="line.314"></a>
<span class="sourceLineNo">315</span><a name="line.315"></a>
<span class="sourceLineNo">316</span>// Cloneable<a name="line.316"></a>
<span class="sourceLineNo">317</span><a name="line.317"></a>
<span class="sourceLineNo">318</span>    /**<a name="line.318"></a>
<span class="sourceLineNo">319</span>     * Deep-clone this instance.<a name="line.319"></a>
<span class="sourceLineNo">320</span>     */<a name="line.320"></a>
<span class="sourceLineNo">321</span>    @Override<a name="line.321"></a>
<span class="sourceLineNo">322</span>    @SuppressWarnings("unchecked")<a name="line.322"></a>
<span class="sourceLineNo">323</span>    public SchemaModel clone() {<a name="line.323"></a>
<span class="sourceLineNo">324</span>        SchemaModel clone;<a name="line.324"></a>
<span class="sourceLineNo">325</span>        try {<a name="line.325"></a>
<span class="sourceLineNo">326</span>            clone = (SchemaModel)super.clone();<a name="line.326"></a>
<span class="sourceLineNo">327</span>        } catch (CloneNotSupportedException e) {<a name="line.327"></a>
<span class="sourceLineNo">328</span>            throw new RuntimeException(e);<a name="line.328"></a>
<span class="sourceLineNo">329</span>        }<a name="line.329"></a>
<span class="sourceLineNo">330</span>        clone.schemaObjectTypes = (TreeMap&lt;Integer, SchemaObjectType&gt;)clone.schemaObjectTypes.clone();<a name="line.330"></a>
<span class="sourceLineNo">331</span>        for (Map.Entry&lt;Integer, SchemaObjectType&gt; entry : clone.schemaObjectTypes.entrySet())<a name="line.331"></a>
<span class="sourceLineNo">332</span>            entry.setValue(entry.getValue().clone());<a name="line.332"></a>
<span class="sourceLineNo">333</span>        return clone;<a name="line.333"></a>
<span class="sourceLineNo">334</span>    }<a name="line.334"></a>
<span class="sourceLineNo">335</span>}<a name="line.335"></a>
<span class="sourceLineNo">336</span><a name="line.336"></a>




























































</pre>
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